JANUARY 4, 1923
NOTICES TO AIRMEN
Radio Services in Connection with Civil Air Routes
1. THE information relating to Radio services in connec-
tion with civil aviation which has hitherto been contained in a
number of separate Notices to Airmen is, in Notice No. 138
of 1922, consolidated and brought up-to-date.
2. All previous Notices to Airmen relating to Radio services
are, therefore, cancelled. These Notices are :— . ^ .,....
1920.—No. in, para. 2. " ;
1921.—Nos. 21, 40, 69, 100, 107 and 111.
1922.—Nos. 3, 43, 46, 50, 54, 65, 68, 88, 94, 105 and 122.
3. In order to facilitate reference, the subject has been
divided into three parts, as follows :—
Part I.—Radio Telephony : Organisation and Procedure.—
This part relates to the system of R/T communication on
recognised air routes under British control.
Part II.—Wireless Direction Finding Services : British
Isles, France, Germany and Italy.—Containing particulars of
the stations available and the procedure to be employed with
both R/T and W/T.
Part III.—W/T Stations in operation in connection with
Civil Air Routes.—In this part a full list is given of the W/T
stations directly concerned with flying operations in Great
Britain, Belgium, France and Holland.
4. Strict adherence to the radio organisation described
in this Notice affords the best possible means for the efficient
control of air traffic and for ensuring the safety of aircraft
and passengers, and bearings taken by D.F. stations can
be assumed to be of a high degree of accuracy, but it must
be clearly understood that the Air Ministry, while taking
every reasonable precaution to ensure the efficient working
of the radio services of all classes mentioned in this Notice,
accept no responsibility for any consequences arising directly
or indirectly from the use of these services, from any in-
accuracy of bearings or information given, from any failure
in the services or from any other cause whatsoever.
Copies of this Notice can be obtained from the Air Ministry.
(No. 138 of 1922.)
Holland : Rotterdam (Waalhaven) Aerodrome
1. Rotterdam.—(a) Night-landing arrangements. — Nine
ground lights have been established in the centre of the
landing ground, eight of which are arranged at equal distances
apart, in the form of a circle with a diameter of 80 metres,
the ninth light being in the centre of the circle.
In accordance with the direction of the wind, five of the
said lights are lighted in the form of a landing " T."
Landing must be effected in the direction of the long arm
of the " T," towards the short arm.
The ground lights, also the obstruction lights (red lights
on the chimney in the N.E. corner and other high points),
will only be lit when an aircraft is expected, or on request.
(b) Obstructions, etc.—A fence 2 • 20 metres (7 ft.) in height
has been erected along the east side and along the major
part of the south and north sides of the aerodrome.
In order that this fence may be clearly visible from the air,
the top is made of horizontal white planks placed end to end
along it.
The exhibition buildings erected for the I.C.A.R. (Inter-
national Concours Aviatique Rotterdam) have been de-
molished, with the exception of the sheds south of the row of
hangars.
Landing is no longer restricted to any parf of the aerodrome.
(No. 141 of 1922.)
THE LONDON-CONTINENTAL SERVICES
FLIGHTS BETWEEN
Route (including certain
diverted journeys)
Croydon-Paris
Paris-Croydon ...
Croydon-Brussels-
Cologne
Cologne-Brussels-
Croydon
Croydon-Rotterdam ...
Rotterdam-Croydon ...
Manchester-Croydon-
r\ P)SLeiUalUAmsterdam-Croydon-
Manchester
Total for two weeks ...
ights
*
0
No
.
20
19
10
8
8
9
10J
I4§
98
.ssenger
s
8.
No
. 0
90
58
38
22
12
14
46
22
302
No. of
flights
carrying
»
Ma
i
8
4
9
7
8
9
5
50
Good
s
19
18
—
—
8
9
2
2
58
DECEMBER
it
d
55
16
17
8
6
8
8
10
14
87
5 flying le
Sb.5
t-i
Av
e
h. m.
3 17
2 53
3 38
5 20
2 4
3 29
5 0
—
17 AND DECEMBER 30, INCLUSIVE
-. ..-;•
Fastest time made by
•
H.P.W.8BG-EBBG(2h.28m.)
H.P.W8B G-EBBI (2h. 28m.)
D.H. 18 G-EAWW(3h. 9m.)
D.H. 34 G-EBBR (4I1. 51m.)
Fokker H-NABJ (ih. 46m.)
Fokker H-NABJ (2h. 55m.)
D.H 34 G-EBBY (4h. 35m.)
—
Type and (in brackets)
Number of each type flying
• . ' • • . • .
B. (1), G. (9), H.P.W.8B. (3).
B. (1), G. (9), H.P.W.8B. (3).
D.H. 4 (1), D.H. 18 (1), D.H. 34
(3)-D.H. 4 (1), D.H. 18 (1), D.H. 34
(3)-
F. (6).
F. (6).
D.H. 34(3)-
D.H. 34(3)-
Id - • Not including " private " nights. f Including certain journeys when stops were made en row.'*. .-
J Man.-Croy. 4, Croy.-A'dam. 1. § A'dam.-Croy. 5, Croy.-Man. 9.
Av. = Avro. B, = Breguet. Br. = Bristol. Bt. = B.A.T. D.H.4 = De Havilland 4, D.H.g (etc.).
F. = Fokker. Fa. = Farman F.50. G. = Goliath Farman. H.P. = Handley Page. M. = Martinsyde. Sp. = Spad.
Vi. = Vickers Vimy. Vu. = Vickers Vulcan. W. = Westland.
The following is a list of firms running services between London and Paris, Brussels, etc., etc.:—Co. des Grander
Expresses A6riennes; Daimler Hire, Ltd.; Handley Page Transport, Ltd.; Instone Air Line; Koninklijkie Luchtvaart
Maatschappij ; Metssageries Aeriennes. •:-.,- - r ... „-.- ,. ,
R.A.F. Sports
The R.A.F. Sports Board announce the following arrange-
ments for January, 1923 :—Saturday, 6th, Rugby, R.A.F. v.
Leicester at Leicester. Wednesday, 10th, Rugby, R.A.F. v.
Guy's Hospital, at Honor Oak Park. Wednesday, 17th,
Fencing, R.A.F. v. R.N., at Portsmouth. Saturday, 20th
to Saturday, 27th, Association, R.A.F. Memorial Fund Week.
Wednesday, 24th, Fencing, R.A.F. v. Cambridge University,
at Uxbridge. Wednesday, 31st, Hockey, R.A.F. v. R.E., at
Uxbridge.
Air Mails in Australia
FROM Hudson Fysh, Chief Pilot of the Queensland and
Northern Territory Aerial Services, Ltd., comes a letter,
sent from Cloncurry by the first trip of Australia's second
aerial mail service. The " cover," to use a philatelic term,
bears a lable printed in red, inscribed " For Aerial Trans-
mission. First Trip Australia's Second Aerial Mail," and
has, in addition the current 5^. Australia brown postage
stamp, postmarked "Cloncurry. 5-A-11-1922. Queens-
land." But why not have a proper Aerial Mail stamp ?
12